Sony Microphone ECM-C10. Microphone sensitivity: -40 dB, Microphone frequency: 50 - 15000 Hz, Microphone direction type: Omni. Connectivity technology: Wired, Cable type: OFC, Cable length: 1 m. Battery type: CR2025, Battery technology: Alkaline, Battery life (max): 300 h. Dimensions (WxDxH): 6.25 x 3.75 x 1.5 mm, Weight: 10 g